diff options
| -rw-r--r-- | Lib/dis.py | 56 |
1 files changed, 56 insertions, 0 deletions
@@ -55,6 +55,62 @@ def distb(tb=None): while tb.tb_next: tb = tb.tb_next disassemble(tb.tb_frame.f_code, tb.tb_lasti) +# XXX This duplicates information from code.h, also duplicated in inspect.py. +# XXX Maybe this ought to be put in a central location, like opcode.py? +flag2name = { + 1: "OPTIMIZED", + 2: "NEWLOCALS", + 4: "VARARGS", + 8: "VARKEYWORDS", + 16: "NESTED", + 32: "GENERATOR", + 64: "NOFREE", +} + +def pretty_flags(flags): + """Return pretty representation of code flags.""" + names = [] + for i in range(32): + flag = 1<<i + if flags & flag: + names.append(flag2name.get(flag, hex(flag))) + flags ^= flag + if not flags: + break + else: + names.append(hex(flags)) + return ", ".join(names) + +def show_code(co): + """Show details about a code object.""" + print("Name: ", co.co_name) + print("Filename: ", co.co_filename) + print("Argument count: ", co.co_argcount) + print("Kw-only arguments:", co.co_kwonlyargcount) + print("Number of locals: ", co.co_nlocals) + print("Stack size: ", co.co_stacksize) + print("Flags: ", pretty_flags(co.co_flags)) + if co.co_consts: + print("Constants:") + for i_c in enumerate(co.co_consts): + print("%4d: %r" % i_c) + if co.co_names: + print("Names:") + for i_n in enumerate(co.co_names): + print("%4d: %s" % i_n) + if co.co_varnames: + print("Variable names:") + for i_n in enumerate(co.co_varnames): + print("%4d: %s" % i_n) + if co.co_freevars: + print("Free variables:") + for i_n in enumerate(co.co_freevars): + print("%4d: %s" % i_n) + if co.co_cellvars: + print("Cell variables:") + for i_n in enumerate(co.co_cellvars): + print("%4d: %s" % i_n) + def disassemble(co, lasti=-1): """Disassemble a code object.""" code = co.co_code |